Gases can be produced by normal flora (bacteria that normally lives in the intestines) and harmful bacteria as well.
You never gave option choices so here's my best
<span>Sterilisation is considered a permanent method of birth control that a man or woman may choose. Although sterilisation, or a tubal ligation, for women and vasectomy for men can sometimes be reversed, the surgery is much more complicated than the original procedure and may not be successful.
Hope I helped :)</span>
Answer:
symbols that group members use to identify who they are
Explanation:
ADD
OCD
Insomnia
Schizophrenia
Sensory anxiety
Social anxiety
Asthma
Dyslexia
Dyscalculia
Common cold
Flue
(Dude, there is a lot of health challenges mental and physical.)